2016. A European horror film, the actors were Spanish,
2 families camp on the edge of a marshy lake. No one wants to be there but one of the fathers who fancies himself a woodsman.and bullies everyone to stay.
Food runs out, fish they catch are spoiled, they hear a girls voice in the marshes and now they can’t seem to find their way out.
There is gangrene finger chopping, wife knocked in the head and developing maggots and finally one of the sons kills the insane father and makes it back to civilization with a ghostly partner.
Surely somebody saw this beauty!
May have been Amazon Prime or Netflix.